2026 Chrysler Pacifica Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

12 Coolant / Antifreeze parts for the 2026 Chrysler Pacifica come from 2 brands — PRESTONE and VALVOLINE. The "Popular" part is VALVOLINE ZXG051. 8 parts fit every engine; the other 4 are engine-specific.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 2 options from PRESTONE and VALVOLINE — the catalog's value-priced group. PRESTONE AF3100 is listed in this group.

In the Heavy Duty grade, VALVOLINE and PRESTONE supply 2 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.

In the Premium grade, PRESTONE supplies 3 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE supplies 4 parts: built to original-equipment specification. A representative part number is VALVOLINE ZXEL1.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

One part is listed for the 2026 Chrysler Pacifica — MOPAR 68217323AA.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

3 Coolant Reservoir Cap parts are listed for the 2026 Chrysler Pacifica, from MOTORAD and CALORSTAT. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include CALORSTAT RC0144, MOTORAD T73 and MOTORAD T114.

This table covers the Hose clamps. Read more

2 Hose Clamp parts for the 2026 Chrysler Pacifica come from MOPAR.

Part numbers include MOPAR 6511760AA and MOPAR 6512672AA.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

11 Radiator parts for the 2026 Chrysler Pacifica come from 6 brands — MOPAR, CSF, FVP and 3 other brands. The "Popular" part is CSF 3810.

The Economy section: 1 option from GPD. GPD 13641C is listed in this group.

Standard Replacement: 3 parts, from CSF, FVP and OSC. A representative part number is CSF 3810.

7 further parts sit outside the graded sections, with the same engine-level match.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

5 Radiator Fan Assembly parts are listed for the 2026 Chrysler Pacifica, from DORMAN, FOUR SEASONS, MOPAR and 2 other brands. DORMAN 620187 carries the "Popular" badge. 4 parts fit every engine; the other 1 is engine-specific.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 620187.

The Standard Replacement section: 4 options from FOUR SEASONS, MOPAR, TYC and 1 other brand. FOUR SEASONS 75316 is listed in this group.

Part numbers include DORMAN 620187, FOUR SEASONS 75316 and MOPAR 68457956AD, among others listed above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

One part is listed for the 2026 Chrysler Pacifica — MOPAR 68217327AE.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

MOPAR supplies both parts for the 2026 Chrysler Pacifica.

Part numbers include MOPAR 68294447AA and MOPAR 52014782AA.

This table covers the seals at the Radiator. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2026 Chrysler Pacifica — MOPAR 68229146AB.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

4 Temperature Sender / Sensor parts for the 2026 Chrysler Pacifica come from 3 brands — MOPAR, HOLSTEIN and STANDARD MOTOR PRODUCTS. Every part fits both the 3.6L V6 and the 3.6L V6 ELECTRIC/GAS.

The Economy section: 1 option from HOLSTEIN. HOLSTEIN 2CTS0059 is listed in this group.

Standard Replacement: 3 parts, from MOPAR and STANDARD MOTOR PRODUCTS. A representative part number is MOPAR 68270732AB.

Listed part numbers: HOLSTEIN 2CTS0059, MOPAR 68270732AB and MOPAR 68217702AD, plus the other parts above.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

3 Thermostat parts are listed for the 2026 Chrysler Pacifica, from MOTORAD and MOPAR. All of them fit every engine offered in the 2026 Pacifica.

The Heavy Duty section: 1 option from MOTORAD. MOTORAD 5865194 is listed in this group.

The Standard Replacement section: 2 options from MOPAR and MOTORAD. MOPAR 68217305AG is listed in this group.

Part numbers include MOTORAD 5865194, MOPAR 68217305AG and MOTORAD 865194.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

This group shows a single part: MOPAR 4893786AA.

This table covers the housings and outlets the thermostat sits in. Read more

2 Thermostat Housing / Water Outlet parts are listed for the 2026 Chrysler Pacifica, from MOPAR and MOTORAD. All of them fit every engine offered in the 2026 Pacifica.

Part numbers include MOPAR 4893794AE and MOTORAD CH2073.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

7 Water Pump parts are listed for the 2026 Chrysler Pacifica, from US MOTOR WORKS, FVP, SKP and 4 other brands. US MOTOR WORKS US8151 carries the "Popular" badge. All of them fit every engine offered in the 2026 Pacifica.

Economy: 3 parts, from US MOTOR WORKS, FVP and SKP. A representative part number is US MOTOR WORKS US8151.

The Standard Replacement section: 4 options from MELLING, DAYCO, GMB and 1 other brand. MELLING MWP548 is listed in this group.

This group includes US MOTOR WORKS US8151 and SKP SK1204010 and the remaining parts above.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: MOPAR 68214109AB.